DE3616601C2 - - Google Patents
Info
- Publication number
- DE3616601C2 DE3616601C2 DE3616601A DE3616601A DE3616601C2 DE 3616601 C2 DE3616601 C2 DE 3616601C2 DE 3616601 A DE3616601 A DE 3616601A DE 3616601 A DE3616601 A DE 3616601A DE 3616601 C2 DE3616601 C2 DE 3616601C2
- Authority
- DE
- Germany
- Prior art keywords
- light
- elements
- input field
- arrangement
- emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
- H03K17/943—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector using a plurality of optical emitters or detectors, e.g. keyboard
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Light Receiving Elements (AREA)
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
Die Erfindung betrifft ein photoelektrisches Licht schranken-Eingabefeld, gemäß Oberbegriff des Anspruchs 1, bei dem eine Anordnung lichtemittierender Elemente und eine Anordnung lichtempfangender Elemente in Form eines Rahmens rund um einen Bildschirm angeordnet sind, um Infrarotstrahlenbündel in Form einer Matrix zu er zeugen. Durch Unterbrechung von Infrarotstrahlenbündeln an ausgewählten Stellen der Matrix mittels eines Fingers oder eines Eingabestiftes, der in den optischen Wirk bereich der optischen Elemente gebracht wird, können entsprechende Koordinaten in einen Computer einge geben werden. The invention relates to a photoelectric light barrier input field, according to the preamble of claim 1, in which an arrangement of light emitting elements and an arrangement of light-receiving elements in the form of a Frames are arranged around a screen, to form infrared rays in the form of a matrix testify. By interrupting infrared rays at selected points in the matrix with a finger or a stylus that works in the optical effect range of optical elements can be brought corresponding coordinates entered into a computer will give.
Derartige photoelektrische Lichtschranken-Eingabefelder sind bekannt aus DE 30 25 318 A1 und IBM Technical Disclosure Bulletin, Vol. 23, Nr. 7B, Dez. 1980, S. 3287 und 3288.Such photoelectric light barrier input fields are known from DE 30 25 318 A1 and IBM Technical Disclosure Bulletin, Vol. 23, No. 7B, Dec. 1980, p. 3287 and 3288.
Aus dem genannten IBM Technical Disclosure Bulletin ist es bekannt, ein Gasentladungsanzeigefeld mit einem Rahmen zu umgeben, von dem zwei benachbarte Seiten mit Prisma/ Linsen-Anordnungen ausgestattet sind, die Licht von unter den Prismen angeordneten Lichtquellen über linsenartige Ausbauchungen an den Austrittsstellen der Prismen zu Anordnungen von Linsen und Photosensoren schicken, die an den anderen beiden benachbarten Seiten des Rahmens angeordnet sind. Um Raumlichtstörungen minimal zu machen, sind den Sensoren schmalbandige optische Filter zuge ordnet. Da mindestens die den Sensoren zugeordneten Linsen Einzellinsen sind, ergibt sich nicht nur ein hoher Herstellungs- und Montageaufwand sondern können Fehlausrichtungen einzelner Linsen zu einer Beein trächtigung der Eingabegenauigkeit und Eingabeauflö sung des Lichtschranken-Eingabefeldes führen.From the aforementioned IBM Technical Disclosure Bulletin it is known a gas discharge display panel with a frame surrounded by two adjacent sides with prism / Lens assemblies are equipped that light from below the prisms arranged light sources over lens-like Bulges at the exit points of the prisms too Send arrays of lenses and photosensors that on the other two adjacent sides of the frame are arranged. To minimize room light disturbances, narrow-band optical filters are attached to the sensors arranges. Because at least those assigned to the sensors Lenses are single lenses, not just one high manufacturing and assembly costs but can Misalignments of individual lenses to one leg entry accuracy and resolution solution of the light barrier input field.
Bei dem Lichtschranken-Eingabefeld gemäß DE 30 25 318 A1, ist ein vor den lichtemittierenden Elementen und vor den lichtempfangenden Elementen angeordneter Filterrahmen vorgesehen, der im Bereich dieser Elemente linsenförmig gewölbte Teile aufweist, die offenbar durch teilzylindrische Linsen gebildet sind. Hierdurch er gibt sich zwar eine Fokussierung bezüglich der Rich tungen, die senkrecht zu den Reihen der lichtemittie renden und der lichtempfangenden Elemente verlaufen. In Richtung dieser Reihen wird jedoch keine Fokussie rung erreicht. Dadurch kann nur eine beschränkte Eingabe genauigkeit und Eingabeauflösung erreicht werden.With the light barrier input field according to DE 30 25 318 A1, is one in front of the light emitting elements and arranged in front of the light-receiving elements Filter frame provided in the area of these elements has lenticular parts, apparently by partially cylindrical lenses are formed. This way he there is a focus on the rich lines that are perpendicular to the rows of light emission ends and the light-receiving elements run. However, there is no focus in the direction of these rows tion reached. This allows only a limited input accuracy and input resolution can be achieved.
Der Erfindung liegt die Aufgabe zugrunde, ein Licht schranken-Eingabefeld der eingangs angegebenen Art verfügbar zu machen, bei dem durch einen verbesserten Lichtsammeleffekt die Eindeutigkeit der Zuordnung einzelner lichtemittierender Elemente zu entsprechenden lichtempfangenden Elemente erhöht und damit die Zuver lässigkeit und Auflösungsfähigkeit eines solchen Lichtschranken-Eingabefeldes verbessert wird.The invention has for its object a light barrier input field of the type specified at the beginning to make available by an improved Light collecting effect the uniqueness of the assignment individual light-emitting elements to corresponding light-receiving elements increased and thus the verver The nonchalance and ability to resolve such Light barrier input field is improved.
Diese Aufgabe wird durch die kennzeichnenden Merk male des Anspruchs 1 gelöst.This task is characterized by the characteristic male of claim 1 solved.
Durch die erfindungsgemäßen Maßnahmen erübrigt sich die Herstellung, Anordnung und Justierung irgendwelcher un abhängiger Linsen. Es kann die Anzahl der Teile redu ziert, die Genauigkeit des Lichtschranken-Eingabefeldes erhöht und der Herstellungs- und Justiervorgang ver einfacht werden.The measures according to the invention make this unnecessary Manufacture, arrangement and adjustment of any un dependent lenses. The number of parts can be reduced adorns the accuracy of the light barrier input field increased and the manufacturing and adjustment process ver be simplified.
Vorzugsweise werden lichtemittierende Elemente in Form
von LEDs und lichtempfangende Elemente in Form von
Phototransistoren verwendet. Dies ist im Zusammenhang
mit einem Strichcode-Leser an sich bereits aus der
DE 31 47 185 A1 bekannt.
Light-emitting elements in the form of LEDs and light-receiving elements in the form of phototransistors are preferably used. In connection with a bar code reader, this is already known from DE 31 47 185 A1.
Die Erfindung wird nun anhand einer Ausführungsform näher erläutert. In den Zeichnungen zeigtThe invention is now based on an embodiment explained in more detail. In the drawings shows
Fig. 1 eine schematische Frontansicht, die den Zustand zeigt, in welchem ein erfindungsgemäßes Filter angeordnet ist; Fig. 1 is a schematic front view showing the state in which a filter according to the invention is arranged;
Fig. 2 eine vergrößerte Ansicht eines LED-Bereichs der in Fig. 1 gezeigten Anordnung; und FIG. 2 is an enlarged view of an LED area of the arrangement shown in FIG. 1; and
Fig. 3 eine vergrößerte Ansicht eines Phototransistor- Bereichs der in Fig. 1 gezeigten Anordnung. Fig. 3 is an enlarged view of a phototransistor region of the arrangement shown in Fig. 1.
In der Zeichnungen sind mit den Bezugsziffern 1 a, 1 b, 1 c und 1 d Anordnungen bezeichnet, die in Form eines Rahmens rund um die Bildschirmträgerplatte einer Bildschirm anzeigeeinrichtung angeordnet sind. Auf den Anordnungen 1 a und 1 b sind LED's (lichtemittierende Dioden) 2, 2 . . ., die als lichtemittierende Elemente dienen, in einem be stimmten Abstand angeordnet. Auf den Anordnungen 1 c und 1 d sind Phototransistoren 3, 3, . . ., die als Licht empfangselemente dienen, den LED's 2, 2, . . . entsprechend angeordnet. Dadurch werden Infrarotstrahlenbündel in Form einer Matrix erzeugt.In the drawings, reference numerals 1 a , 1 b , 1 c and 1 d denote arrangements which are arranged in the form of a frame around the screen support plate of a screen display device. On the arrangements 1 a and 1 b there are LEDs (light emitting diodes) 2, 2 . . ., Which serve as light-emitting elements, arranged at a certain distance. On the arrangements 1 c and 1 d are phototransistors 3, 3 ,. . ., which serve as light receiving elements, the LEDs 2, 2 ,. . . arranged accordingly. This creates infrared rays in the form of a matrix.
Vor den LED's 2, 2, . . . und den Phototransistoren 3, 3, . . . entlang den Anordnungen 1 a, 1 b, . . . ist ein Filter 4 angeordnet. Am Filter 4 sind an Stellen, die den LED's 2, 2, . . . und den Phototransistoren 3, 3, . . ., entsprechen, konvergierend wirkende Bereiche 5, 5, . . . so ausgebucht, daß sie eine kugelartige Form aufweisen. Da die konver gierenden oder konvergierend wirkenden Bereiche 5 die Form eines Teils einer Kugel aufweisen, besitzen sie die Wirkung konvexer Linsen und bewirken ein Konvergieren des von den LED's 2 emittierten und von den Phototransistoren 3 zu empfangenden Lichtes.In front of the LEDs 2, 2 ,. . . and the phototransistors 3, 3 ,. . . along the arrangements 1 a , 1 b,. . . a filter 4 is arranged. On the filter 4 are in places that correspond to the LEDs 2, 2 ,. . . and the phototransistors 3, 3 ,. . ., correspond to converging regions 5, 5,. . . fully booked so that they have a spherical shape. Since the converging or converging regions 5 have the shape of part of a sphere, they have the effect of convex lenses and bring about a convergence of the light emitted by the LEDs 2 and to be received by the phototransistors 3 .
Ein erfindungsgemäßer Filter besitzt also zusätzlich zu seiner Filterfunktion eine Linsenfunktion. Daher besteht keine Notwendigkeit, unabhängige Linsen herzustellen und zu montieren, so daß die Anzahl der Teile und Herstellungs schritte verringert werden kann.A filter according to the invention therefore also has its filter function is a lens function. Therefore there is no need to make independent lenses and to assemble so that the number of parts and manufacturing steps can be reduced.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60105326A JPS61262917A (en) | 1985-05-17 | 1985-05-17 | Filter for photoelectric touch panel |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3616601A1 DE3616601A1 (en) | 1986-11-20 |
DE3616601C2 true DE3616601C2 (en) | 1989-12-21 |
Family
ID=14404591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863616601 Granted DE3616601A1 (en) | 1985-05-17 | 1986-05-16 | FILTER FOR A PHOTOELECTRIC PHOTOCELL ENTRY PANEL |
Country Status (5)
Country | Link |
---|---|
US (1) | US4737631A (en) |
JP (1) | JPS61262917A (en) |
KR (1) | KR900003229B1 (en) |
DE (1) | DE3616601A1 (en) |
GB (1) | GB2175393B (en) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4812830A (en) * | 1986-12-08 | 1989-03-14 | Digital Electronics Corporation | Touch panel display assembly |
US4891508A (en) * | 1988-06-30 | 1990-01-02 | Hewlett-Packard Company | Precision infrared position detector apparatus for touch screen system |
US5162783A (en) * | 1990-07-23 | 1992-11-10 | Akzo N.V. | Infrared touch screen device for a video monitor |
US6972753B1 (en) * | 1998-10-02 | 2005-12-06 | Semiconductor Energy Laboratory Co., Ltd. | Touch panel, display device provided with touch panel and electronic equipment provided with display device |
JP3481498B2 (en) * | 1999-04-28 | 2003-12-22 | 日本航空電子工業株式会社 | Optical touch panel |
JP4052498B2 (en) | 1999-10-29 | 2008-02-27 | 株式会社リコー | Coordinate input apparatus and method |
JP2001184161A (en) | 1999-12-27 | 2001-07-06 | Ricoh Co Ltd | Method and device for inputting information, writing input device, method for managing written data, method for controlling display, portable electronic writing device, and recording medium |
US6864882B2 (en) | 2000-05-24 | 2005-03-08 | Next Holdings Limited | Protected touch panel display system |
US6690363B2 (en) | 2000-06-19 | 2004-02-10 | Next Holdings Limited | Touch panel display system |
US6803906B1 (en) | 2000-07-05 | 2004-10-12 | Smart Technologies, Inc. | Passive touch system and method of detecting user input |
DE60124549T2 (en) * | 2000-07-05 | 2007-09-06 | Smart Technologies Inc., Calgary | CAMERA-BASED TOUCH SYSTEM |
KR20040111658A (en) | 2002-05-20 | 2004-12-31 | 소니 가부시끼 가이샤 | Information processing system, information processing device, and information processing method |
KR100487483B1 (en) * | 2002-06-29 | 2005-05-06 | (주) 인펙 | optical touch pannel and light emission elements threrefor |
US6954197B2 (en) | 2002-11-15 | 2005-10-11 | Smart Technologies Inc. | Size/scale and orientation determination of a pointer in a camera-based touch system |
US6972401B2 (en) * | 2003-01-30 | 2005-12-06 | Smart Technologies Inc. | Illuminated bezel and touch system incorporating the same |
US8508508B2 (en) * | 2003-02-14 | 2013-08-13 | Next Holdings Limited | Touch screen signal processing with single-point calibration |
US8456447B2 (en) | 2003-02-14 | 2013-06-04 | Next Holdings Limited | Touch screen signal processing |
US7629967B2 (en) | 2003-02-14 | 2009-12-08 | Next Holdings Limited | Touch screen signal processing |
US7532206B2 (en) | 2003-03-11 | 2009-05-12 | Smart Technologies Ulc | System and method for differentiating between pointers used to contact touch surface |
US7411575B2 (en) * | 2003-09-16 | 2008-08-12 | Smart Technologies Ulc | Gesture recognition method and touch system incorporating the same |
US7274356B2 (en) | 2003-10-09 | 2007-09-25 | Smart Technologies Inc. | Apparatus for determining the location of a pointer within a region of interest |
US7355593B2 (en) | 2004-01-02 | 2008-04-08 | Smart Technologies, Inc. | Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region |
US7232986B2 (en) * | 2004-02-17 | 2007-06-19 | Smart Technologies Inc. | Apparatus for detecting a pointer within a region of interest |
US7460110B2 (en) | 2004-04-29 | 2008-12-02 | Smart Technologies Ulc | Dual mode touch system |
US7492357B2 (en) | 2004-05-05 | 2009-02-17 | Smart Technologies Ulc | Apparatus and method for detecting a pointer relative to a touch surface |
US7538759B2 (en) | 2004-05-07 | 2009-05-26 | Next Holdings Limited | Touch panel display system with illumination and detection provided from a single edge |
US8120596B2 (en) | 2004-05-21 | 2012-02-21 | Smart Technologies Ulc | Tiled touch system |
CN101103289A (en) * | 2004-12-09 | 2008-01-09 | Rpo私人有限公司 | Optical power distribution devices |
US20070165007A1 (en) * | 2006-01-13 | 2007-07-19 | Gerald Morrison | Interactive input system |
US20070165008A1 (en) * | 2006-01-17 | 2007-07-19 | International Business Machines Corporation | Compact infrared touch screen apparatus |
US20070205994A1 (en) * | 2006-03-02 | 2007-09-06 | Taco Van Ieperen | Touch system and method for interacting with the same |
US9442607B2 (en) | 2006-12-04 | 2016-09-13 | Smart Technologies Inc. | Interactive input system and method |
EP2135155B1 (en) | 2007-04-11 | 2013-09-18 | Next Holdings, Inc. | Touch screen system with hover and click input methods |
US8094137B2 (en) | 2007-07-23 | 2012-01-10 | Smart Technologies Ulc | System and method of detecting contact on a display |
EP2195726A1 (en) * | 2007-08-30 | 2010-06-16 | Next Holdings, Inc. | Low profile touch panel systems |
KR20100055516A (en) | 2007-08-30 | 2010-05-26 | 넥스트 홀딩스 인코포레이티드 | Optical touchscreen with improved illumination |
US8405636B2 (en) | 2008-01-07 | 2013-03-26 | Next Holdings Limited | Optical position sensing system and optical position sensor assembly |
US20090278816A1 (en) * | 2008-05-06 | 2009-11-12 | Next Holdings Limited | Systems and Methods For Resolving Multitouch Scenarios Using Software Filters |
US8902193B2 (en) | 2008-05-09 | 2014-12-02 | Smart Technologies Ulc | Interactive input system and bezel therefor |
US8676007B2 (en) | 2008-06-19 | 2014-03-18 | Neonode Inc. | Light-based touch surface with curved borders and sloping bezel |
TWI406045B (en) * | 2008-06-30 | 2013-08-21 | Ibm | Optical touch panel having smt components as light gates and method of forming light gates on the panel |
US20100079385A1 (en) * | 2008-09-29 | 2010-04-01 | Smart Technologies Ulc | Method for calibrating an interactive input system and interactive input system executing the calibration method |
US8339378B2 (en) * | 2008-11-05 | 2012-12-25 | Smart Technologies Ulc | Interactive input system with multi-angle reflector |
US20100229090A1 (en) * | 2009-03-05 | 2010-09-09 | Next Holdings Limited | Systems and Methods for Interacting With Touch Displays Using Single-Touch and Multi-Touch Gestures |
US8692768B2 (en) | 2009-07-10 | 2014-04-08 | Smart Technologies Ulc | Interactive input system |
US20110095977A1 (en) * | 2009-10-23 | 2011-04-28 | Smart Technologies Ulc | Interactive input system incorporating multi-angle reflecting structure |
JP5525798B2 (en) * | 2009-11-20 | 2014-06-18 | 株式会社ニューフレアテクノロジー | Charged particle beam drawing apparatus and method for correcting charging effect thereof |
US20110193969A1 (en) * | 2010-02-09 | 2011-08-11 | Qisda Corporation | Object-detecting system and method by use of non-coincident fields of light |
US11669210B2 (en) | 2020-09-30 | 2023-06-06 | Neonode Inc. | Optical touch sensor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015122A (en) * | 1974-07-12 | 1977-03-29 | Rubinstein Walter M | Photo-electric object detection system |
US4267443A (en) * | 1978-04-24 | 1981-05-12 | Carroll Manufacturing Corporation | Photoelectric input apparatus |
US4384201A (en) * | 1978-04-24 | 1983-05-17 | Carroll Manufacturing Corporation | Three-dimensional protective interlock apparatus |
DE3025318C2 (en) * | 1980-07-04 | 1982-05-19 | Hewlett-Packard France S.A., Eybens | Sensor matrix for screens |
US4467193A (en) * | 1981-09-14 | 1984-08-21 | Carroll Manufacturing Corporation | Parabolic light emitter and detector unit |
DE3147185A1 (en) * | 1981-11-27 | 1983-06-01 | Sony Corp., Tokyo | Method for controlling an electronic apparatus and device for carrying out the method |
GB2159269A (en) * | 1984-05-21 | 1985-11-27 | Fuscone Roy | Optical score identifier for target games |
-
1985
- 1985-05-17 JP JP60105326A patent/JPS61262917A/en active Pending
-
1986
- 1986-02-05 KR KR1019860000776A patent/KR900003229B1/en not_active IP Right Cessation
- 1986-05-16 DE DE19863616601 patent/DE3616601A1/en active Granted
- 1986-05-19 GB GB8612106A patent/GB2175393B/en not_active Expired
- 1986-05-19 US US06/864,709 patent/US4737631A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4737631A (en) | 1988-04-12 |
DE3616601A1 (en) | 1986-11-20 |
GB8612106D0 (en) | 1986-06-25 |
GB2175393B (en) | 1989-07-19 |
KR860009333A (en) | 1986-12-22 |
GB2175393A (en) | 1986-11-26 |
JPS61262917A (en) | 1986-11-20 |
KR900003229B1 (en) | 1990-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |